Chronological age, relative age, pubertal development, and their impact on countermovement jump performance in adolescent football players: An integrative analysis.

This paper examined the relationship among countermovement jump (CMJ), football category, chronological age, relative age, and pubertal development status to investigate which parameter could be better associated with jumping performance. We tested 259 young male football players (14.9 ± 1.

Crystal structure of 4,4'-(disulfanedi-yl)dipyridinium chloride triiodide.

4,4'-(Disulfanedi-yl)dipyridinium chloride triiodide, CHNS ·Cl·I , () was synthesized by reaction of 4,4'-di-pyridyl-disulfide with ICl in a 1:1 molar ratio in di-chloro-methane solution. The structural characterization of by SC-XRD analysis was supported by elemental analysis, FT-IR, and FT-Raman spectroscopic measurements.

Cine-cardiac magnetic resonance to distinguish between ischemic and non-ischemic cardiomyopathies: a machine learning approach.

Objective: This work aimed to derive a machine learning (ML) model for the differentiation between ischemic cardiomyopathy (ICM) and non-ischemic cardiomyopathy (NICM) on non-contrast cardiovascular magnetic resonance (CMR).

Methods: This retrospective study evaluated CMR scans of 107 consecutive patients (49 ICM, 58 NICM), including atrial and ventricular strain parameters. We used these data to compare an explainable tree-based gradient boosting additive model with four traditional ML models for the differentiation of ICM and NICM.

Graphene Oxide-Arginine Composites: Efficient Dual Function Materials for Integrated CO Capture and Conversion.

The "on-demand" capture and utilization of CO is effectively realized with a readily accessible dual function organic composite. The covalent and controlled derivatization of graphene oxide (GO) surface with naturally occurring arginine led to a "smart" material capable of capturing (chemisorption) CO from high-purity flue-gas as well as low-concentration streams (i. e.

Base-to-apex Gradient Pattern Assessed by Cardiovascular Magnetic Resonance in Takotsubo Cardiomyopathy.

Objectives: The purpose of this study was to investigate the base-to-apex gradient strain pattern as a noncontrast cardiovascular magnetic resonance (CMR) parameter in patients with Takotsubo cardiomyopathy (TTC) and determine whether this pattern may help discriminate TTC from patients with anterior myocardial infarction (AMI).

Materials And Methods: A total of 80 patients were included in the analysis: 30 patients with apical ballooning TTC and 50 patients with AMI. Global and regional ventricular function, including longitudinal (LS), circumferential (CS), and radial strain (RS), were assessed using CMR.

Value of a short non-contrast CMR protocol in MINOCA.

Objectives: To evaluate the diagnostic performance of a short non-contrast CMR (ShtCMR) protocol relative to a matched standard comprehensive CMR (StdCMR) protocol in patients with myocardial infarction with non-obstructive coronary arteries (MINOCA).

Methods: This multicenter retrospective study included patients with a working diagnosis of MINOCA who underwent a StdCMR between January 2019 and December 2020. An expert and a non-expert reader performed a blinded reading with the ShtCMR (long-axis cine images, T2w-STIR, T1- and T2-mapping).

Ammonium -(pyridin-2-ylmethyl)oxamate (AmPicOxam): A Novel Precursor of Calcium Oxalate Coating for Carbonate Stone Substrates.

Ammonium -(pyridin-2-ylmethyl)oxamate (AmPicOxam), synthesized from -methyl--(pyridin-2-ylmethyl)oxamate, was spectroscopically and structurally characterized and assayed as a novel precursor for the protection and consolidation of carbonate stone substrates. An in-depth characterization of treated and untreated biomicritic limestone and white Carrara marble samples was carried out by means of SEM microscopy, X-ray powder diffraction, helium pycnometry, determination of water transport properties, and pull-off tests. The improved solubility (1.

Chemical Tailoring of β-Cyclodextrin-Graphene Oxide for Enhanced Per- and Polyfluoroalkyl Substances (PFAS) Adsorption from Drinking Water.

We report on the synthesis of β-cyclodextrin (βCD) modified graphene oxide (GO) nanosheets, having different sized alkyl linkers (GO-C -βCD) and their exploitation as sorbent of per- and polyfluoroalkyl substances (PFAS) from drinking water. βCD were functionalized with a pending amino group, and the resulting precursors grafted to GO nanosheets by epoxide ring opening reaction. Loading of βCD units in the range 12 %-36 % was estimated by combined XPS and elemental analysis.

A new class of third-order nonlinear optical materials: laser pulse-duration dependant saturable absorption and nonlinear refraction in platinum(II) diimine-dithiolate complexes.

The third-order nonlinear optical (NLO) properties of a series of platinum diimine-dithiolate complexes [Pt(N^N)(S^S)] were investigated by means of -scan measurements, revealing second hyperpolarizability values up to 10 esu, saturable absorption properties, and nonlinear refractive behaviour, which were rationalized also by means of DFT calculations.

A Structural Approach to the Strength Evaluation of Linear Chalcogen Bonds.

The experimental structural features of chalcogen bonding (ChB) interactions in over 34,000 linear fragments R-Ch⋯A (Ch = S, Se, Te; R = C, N, O, S, Se, Te; A = N, O, S, Se, Te, F, Cl, Br, I) were analyzed. The bond distances d and the interaction distances d were investigated, and the functions δ and δ were introduced to compare the structural data of R-Ch⋯A fragments involving different Ch atoms. The functions δ and δ were calculated by normalizing the differences between the relevant bond d and ChB interaction d distances with respect to the sum of the relevant covalent ( + ) and the van der Waals (vdW) radii ( + ), respectively.

[Au(N^N)Br](PF): A Class of Antibacterial and Antibiofilm Complexes (N^N = 2,2'-Bipyridine and 1,10-Phenanthroline Derivatives).

A series of new complexes of general formula [Au(N^N)Br](PF) (N^N = 2,2'-bipyridine and 1,10-phenanthroline derivatives) were prepared and characterized by spectroscopic, electrochemical, and diffractometric techniques and tested against Gram-positive and Gram-negative bacterial strains (, , , and ), showing promising antibacterial and antibiofilm properties.

Recyclable GO-Arginine Hybrids for CO Fixation into Cyclic Carbonates.

New covalently modified GO-guanidine materials have been realized in a gram-scale synthesis and purified by an innovative microfiltration. The use of these composites in the fixation of CO into cyclic carbonates is demonstrated. Mild operating conditions, high yields (up to 85 %), wide scope (15 examples) and recoverability/reusability (up to 5 cycles) of the material account for the efficiency of the protocol.

Self-Assembly of Supramolecular Architectures Driven by σ-Hole Interactions: A Halogen-Bonded 2D Network Based on a Diiminedibromido Gold(III) Complex and Tribromide Building Blocks.

The reaction of the complex [Au(phen)Br](PF) (phen = 1,10-phenanthroline) with molecular dibromine afforded {[Au(phen)Br](Br)} (). Single crystal diffraction analysis showed that the [Au(phen)Br] complex cations were bridged by asymmetric tribromide anions to form infinite zig-zag chains featuring the motif ···Au-Br···Br-Br-Br···Au-Br···Br-Br-Br···. The complex cation played an unprecedented halogen bonding (XB) donor role engaging type-I and type-II XB noncovalent interactions of comparable strength with symmetry related [Br] anions.

Chelating Phosphorus-An O, C, O-Coordinating Pincer-Type Ligand Coordinating P and P Centres.

The sequence of reactions of the phosphorus-containing aryllithium compound 5-t-Bu-1,3-[(P(O)(O-i-Pr) ] C H Li (ArLi) with Ph PCl, KMnO , elemental sulfur and elemental selenium, respectively, gave the aryldiphenylphosphane chalcogenides 5-t-Bu-1,3-[(P(O)(O-i-Pr) ] C H P(E)Ph (1, E=O; 2, E=S; 3, E=Se). Compound 1 partially hydrolysed giving [5-t-Bu-1-{(P(O)(O-i-Pr) }-3-{(P(O)(OH) }C H ]P(O)Ph (4). The reaction of ArLi with PhPCl provided the benzoxaphosphaphosphole [1(P), 3(P)-P(O)(O-i-Pr)OPPh-6-t-Bu-4-P(O)(O-i-Pr) ]C H P (5i) as a mixture of the two diastereomers.

Boosting Gold(I) Catalysis via Weak Interactions: New Fine-Tunable Impy Ligands.

A series of modular ImPy-carbene-Au(I) complexes are synthesized and fully characterized both in the solid state and in solution. The presence of oligoaryl units (phenyl and thienyl rings) at the C5-position of the ImPy core (in close proximity to the gold center) imprints on the organometallic species fine-tunable and predictable catalytic properties. A marked accelerating effect was recorded in several [Au(I)]-catalyzed electrophilic activations of unsaturated hydrocarbons when a CF-containing aromatic ring was accommodated at the ImPy core.

A prospective pilot study on the effects of endoscopic sinus surgery on upper and lower airway performance.

Objective: The relationship between chronic rhinosinusitis, asthma and allergic rhinitis is well known, but only recently has the scientific community started to evaluate these as different manifestations of a common pathogenic phenomenon, considering them as a unified airway disease.

Methods: Twenty-two patients with chronic rhinosinusitis treated with endoscopic sinus surgery (ESS) were included in the study. Sino-nasal assessment questionnaire (SNAQ) investigating subjective evaluation of sino-nasal state was administered to patients, while objective evaluations included nasal endoscopy, sinonasal CT, skin prick tests, nasal cytology, spirometry, bronchodilator responsiveness testing and sputum eosinophil count.

Luminescent gold-thallium derivatives with a pyridine-containing 12-membered aza-thioether macrocycle.

The coordination modes of the ligand 2,5,8-trithia[9](2,6)pyridinophane (L) to thallium(i), gold(iii) and gold(i) have been studied. Thallium(i) is coordinated by the macrocyclic ligand in [Tl(L)](PF6) (1) through all the sulfur and nitrogen atoms, in a distorted square-pyramidal geometry with the thallium(i) ion in the apical position and with the presence of an inert lone pair. Gold(iii) is bonded by the ligand only through the nitrogen of the pyridine group in [AuCl3(L)] (2), whereas two AuI-C6F5 fragments coordinate the sulfur atoms next to the pyridine moiety of the ligand in [{Au(C6F5)}2(μ-L)] (3), which form a linear polymer through intermolecular aurophilic contacts.

Platinum diimine-dithiolate complexes as a new class of photoconducting compounds for pristine photodetectors: case study on [Pt(bipy)(Naph-edt)] (bipy = 2,2'-bipyridine; Naph-edt = 2-naphthylethylene-1,2-dithiolate).

The photoconducting properties of platinum diimine-dithiolate complex [Pt(bipy)(Naph-edt)] (1; bipy = 2,2'-bipyridine; Naph-edt2- = 2-naphthylethylene-1,2-dithiolate) were investigated. DFT calculations on a model assembly with four complex units suggest that the high external quantum efficency measured on a prototype photodetector correlates with the intermolecular character of electronic excitations in the visible region.

Can Serendipity Still Hold Any Surprises in the Coordination Chemistry of Mixed-Donor Macrocyclic Ligands? The Case Study of Pyridine-Containing 12-Membered Macrocycles and Platinum Group Metal Ions Pd, Pt, and Rh.

This study investigates the coordination chemistry of the tetradentate pyridine-containing 12-membered macrocycles - towards Platinum Group metal ions Pd, Pt, and Rh. The reactions between the chloride salts of these metal ions and the three ligands in MeCN/HO or MeOH/HO (1:1 /) are shown, and the isolated solid compounds are characterized, where possible, by mass spectroscopy and H- and C-NMR spectroscopic measurements. Structural characterization of the 1:1 metal-to-ligand complexes [Pd()Cl][PdCl], [Pt()Cl](BF), [Rh()Cl](PF), and [Rh()Cl](BF)·MeCN shows the coordinated macrocyclic ligands adopting a folded conformation, and occupying four coordination sites of a distorted square-based pyramidal and octahedral coordination environment for the Pd/Pt, and Rh complexes, respectively.

First example of solid-state luminescent borasiloxane-based chiral helices assembled through N-B bonds.

The reaction between differently substituted borasiloxanes and 2,5-bis(3-pyridylethynyl)thiophene provided the first example of luminescent borasiloxane-based chiral helices held together by N-B bonds. The starting building blocks and the helices were fully characterized, and the nature of the N-B bond rationalized by means of theoretical calculations.

Diradical Character of Neutral Heteroleptic Bis(1,2-dithiolene) Metal Complexes: Case Study of [Pd(Metimdt)(mnt)] (Metimdt = 1,3-Dimethyl-2,4,5-trithioxoimidazolidine; mnt = 1,2-Dicyano-1,2-ethylenedithiolate).

The reaction of the bis(1,2-dithiolene) complex [Pd(Metimdt)] (; Metimdt = monoreduced 1,3-dimethyl-2,4,5-trithioxoimidazolidine) with Br yielded the complex [Pd(Metimdt)Br] (), which was reacted with Namnt (mnt = 1,2-dicyano-1,2-ethylenedithiolate) to give the neutral mixed-ligand complex [Pd(Metimdt)(mnt)] (). Complex shows an intense solvatochromic near-infrared (NIR) absorption band falling between 955 nm in DMF and 1060 nm in CHCl (ε = 10700 M cm in CHCl). DFT calculations were used to elucidate the electronic structure of complex and to compare it with those of the corresponding homoleptic complexes and [Pd(mnt)] ().

Antibacterial Activity of Amidodithiophosphonato Nickel(II) Complexes: An Experimental and Theoretical Approach.

The reactions of 2,4-bis(4-methoxyphenyl)-1,3-dithio-2,4-diphosphetane-2,4-disulfide (Lawesson's Reagent, LR) with benzylamine (BzNH) and 4-phenylbutylamine (PhBuNH) yield benzylammonium -(4-methoxyphenyl)--benzyl-amidodithiophosphonate (BzNH)(BzNH-adtp) and 4-phenylbutylammonium -(4-methoxyphenyl)--(4-phenylbutyl)-amidodithiophosphonate (PhBuNH)(PhBuNH-adtp). The relevant nickel complexes [Ni(BzNH-adtp)] and [Ni(PhBuNH-adtp)] and the corresponding hydrolysed derivatives (BzNH)[Ni(dtp)] and (PhBuNH)[Ni(dtp)] were prepared and fully characterized. The antimicrobial activity of the aforementioned amidodithiophosphonates against a set of Gram-positive and Gram-negative pathogen bacteria was evaluated, and [Ni(BzNH-adtp)] and [Ni(PhBuNH-adtp)] showed antiproliferative activity towards and strains.

Photoconducting Devices with Response in the Visible-Near-Infrared Region Based on Neutral Ni Complexes of Aryl-1,2-dithiolene Ligands.

Metal bis(1,2-dithiolene) complexes belonging to the class [Ni(Ar-edt)] [Ar-edt = arylethylene-1,2-dithiolate; Ar = phenyl, (), 2-naphthyl (); = 0 and 1] were fully characterized by NMR, UV-visible-near-infrared (UV-vis-NIR), diffuse reflectance, and FT-IR spectroscopy, as well as cyclic voltammetry and single-crystal X-ray diffraction analysis. These complexes have emerged as new photoconducting materials that allowed for the development of a prototype of photodetectors with response in the vis-NIR region. The photodetecting devices showed in some cases quantum efficiencies orders of magnitude higher than those of previously reported 1,2-dithiolene systems.